Vertical X draws a vertical line from the top of the graph screen to the bottom at X. Vertical is usually only used to replace a line that stretches the entire length of the graph screen, along with its counterpart Horizontal.

Vertical is affected by the window settings, unlike the Pxl- commands.

:Vertical 5

Uses on TI 84+C Version Calculators

The Vertical command takes an additional color argument for TI 84+C version calculators, as shown below: